Water-pressure regulator



(No Model.) n

H. MUE'LLER 8v J. GRSS. WATER PRESSURE REGIILMOR.`

No. 251,725. Patented Jan. 3,1882.

NiTnD STATES PATENT OrmeaQ HIERONYMUS MUELLER AND JOHN GROSS, OF DEOATIIR, ILLINOIS.

WATER-PRESSURE REGULATOR:

SPECIFICATION forming part of Letters Patent No. 251,726, dated January 3, 1882. Application filed .my 9, reel. (No model.)

To all whom it may concern: Be it known that we, HIEnoNYMUs MUEL- LER and JOHN GROSS, citizens of the United States, and residing at Decatur, in the county of Macon and State of Illinois, have invented a new and useful Improvement in Water- Pressure Regulators, of which the following is a specification.

Our invention relates to a new and useful improvement in water-regulators; Vand the object of our improvement is to so construct a regulator that an equal amount of pressure is maintained in the supply-pipes of a building irrespective of the pressure of water in the main; and it consists in the construction and arrangement of valves, their containing case or shell, and an adjusting device, as hereinafter fully described. These objects are attained by the device illustrated in the accompanying drawing, in which the gure isa transverse vertical section of a water-regulator embodyt the cup-shaped ing our invention.

Individual parts are designated by letters.l A is the case or shell, and B the dome. C isthe inlet-orifice, and C the discharge-orifice. D is the plunger or valve-rod, onto which all of valves, washers, and diaphragm are attached and arranged inV orderas follows, viz: The valve H is passed onto the rod against the tiange c of the, rod, followed by the metallic sleeve b, which has a recess cut into the end to receive the lower half of the valve H and secure it from lateral displacement, the opposite end of which is convex in forni to tit within theconcavity of the cup shaped leather disk c, which is in turn backed up by the metallic washer d. The flat rubber disk c is then placed on the rod and thc whole secured thereto by the iianged nut f. A The upper end of the valve-rod is provided with the iiange a', whichl supports the leather cup-shaped diaphragm G, which is secured `thereto as follows: First, the metallic washer g is placed on thc rod, followed by the leather cup-shaped diaphragm G, which is followed by metallic washerg, thatts the convexity of the leatherdiaphragm and acts as a support to prevent bursting or collapse of the diaphragm. The nut h serves to secure the diaphragm and washers tothe rod.

The valve-chamber A forms a part of the case or shell,'having an opening for the passage of water at c'. In said openingis formed the valve-seat for the valve H, `which controls the emission of water into the discharge-pipes. The course of the water is indicated by the arrows. The dome B is screwed onto the case orshell above the diaphragm, and is provided with the adjusting-screw j and a spiral spring, I, one end of which rests on the top of the valvestem, and its opposite end bears against the adjusting-screw, (the washer jbeing inserted between thern,) by which a given and equal pressure is maintained in the supply-pipes.

Its operationn is as follows: A water-gage bein g attached to the discharge-pipe C at any point desiredfor example, say we have one hundred pounds pressure of wateron the main or inlet pipe C, and only require, say, titty pounds pressure on the discharge-pipe of the building-and the water being admitted to the regulator through the inlet-pipe G, the adjustingscrew jis screwed down, increasing the tension ofthe spring until it forces the valve H open against the pressure in the main. The water thus admitted, after lillin g the pipes of thebuilding and having attained the required pressure therein, backs up against the diaphragm G, overpowering the spring and causingthe valve to close until the pressure on the dischargepipe Vis relieved. Then the spring will again open the valve, admitting more waterfrom the main and by this means maintaining au equal pressure on the outlet-pipes.

There is an opening at the bottom of the shell or casing, and also in the valve-chamber, through which the plunger or valve-rod is inserted when assembling the parts. The former is closed by a screw-plug, K, which is concaved to admit of the downward movement of the valve-rod. The latter is closed by the cupshaped leather disk c, which lits water-tight within the chamber, and the dat rubber disk e.

The chamber formed in the lower part of the case below the valve-rod has communication to the outlet portion of the case only through a series of perforations in the inner wall, A', at c', the object of this being to allow the lower chamber to lill n ith water under the same pressure as that in the outlet portion of the case,` and allow it to actupon the lower end of the plunger for the purpose of preventing whatis known to the art as lwater-11ammer, or a continual jarring of the valve in its seat caused by the unequal pressure ot' the water in the main or inlet pipe, to which it is subjected at 5 all times.

It will be seen by reference to the drawing that the diaphragm Gdoes notchange its form in operating, but slides within the vertical projection of the case or shell and allows no water to pass into the dome.

1n order to distinguish the difference between our improved regulator and those heretofore invented to accomplish a similar result, we would refer to the particular formation of the regulating-diaphragm G, which is cup shaped, having high side walls, which afford a bearing against the sides of the cylinder within which it is placed, and having no friction against the sides of the cylinder except when under pressure, the bearing-surface of the cup against the sides of the cyliuderbeingequal to the area of its iiat surface, upon which the water has direct action to force it up and close the valve, as hereinbefore described.

25 It is obvious that thereis another special advantage in having these side walls of the diaphragm high, as shown-viz., that it affords alarge bearing-surface on its interior for the Water to act upon to force the side Walls out against the cylinder, thus making it practically 3o in the dome and thus interfering with the per- 35.

fect action of the plunger.

Having thus described our invention, what l we claim, and desire to secure by Letters Patent, is 4 The combination ofthe case A, provided with. 4o a removable bottom plug, K, the cup-shaped `diaphragm Gr, adapted to slide within said case, valve-stein D, and conical valve H, with sleeve b, (lished valve c,aud the rubber disk e, adapted to rest against the bottom edge of the valve- 4 5 chamber A', substantially as and for the purposes described.

' HIERONYMUS MUELLER.

JOHN GROSS. Witnesses:

CHAs. P. NoNsUM, WM. B. FULLER. 

